Green Tank Irr District 11
EPA ID: WA5329550 · 553 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Green Tank Irr District 11 (WA5329550): no drinking-water violations recorded since 2021. Checked against the EPA violation database, Green Tank Irr District 11 returns no entries for its service territory of 553 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Green Tank Irr District 11 Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Green Tank Irr District 11 have a median household income of $64,485 and about 10,171 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 50% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Green Tank Irr District 11's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Washington
System Overview
Green Tank Irr District 11 (EPA ID: WA5329550) is a community water system in Washington that serves approximately 553 people from groundwater sources.
This system serves ZIP code 99324 in College Place.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0006 mg/L | No | 2023-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by WA or modeled from parcel and building-footprint data.
- 99324 - College Place
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Green Tank Irr District 11 (WA5329550) on EPA.gov.
Frequently Asked Questions
Is Green Tank Irr District 11 water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Green Tank Irr District 11 in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Green Tank Irr District 11 serve?
Green Tank Irr District 11 serves approximately 553 people across 1 ZIP code in Washington.
Where does Green Tank Irr District 11 get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Green Tank Irr District 11 Water Quality Report, WA. https://zipcheckup.com/water-system/wa5329550/
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